Services: only split messages on the HELP command and add empty lines for styling

I talked about the splitting with @ekimekim but I couldn't find it after the merge, so here it is. When a service just sends one line of text, splitting it every 80 characters looks kinda weird and doesn't make much sense. (Poking @ekimekim in this again to make sure he agrees with this :P). I also added some empty lines before and after listing the commands for better readability.
We should never just send a `\n`.  You'll need to either send this as two separate messages or make the `tellUser` alternative when `split` is `False` to use `message.split("\n")` instead of `[message]`.